Type-writing machine.



J, C. MOL AUGHLIN.

1 TYPE WRITING MACHINE.

APPLIGATION FILED (NT. 17, 1911, v 1 065,826, Patented June 24, 1913 P w W Y '0 all whom it may concern;

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J'DHN C. IJIeIiA'UGHLIN, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO 'U'NDERWGOI) TYPEVTRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING- vJMCACZHINE.

' Specification of Letters Patent.

Application filed October 17, 1911. Serial No. 655,151.

Be it known that I, Jenn O. MoLAuon- LIN, a citizen of the United States, residing in Jersey City. in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to typewriting machines, and especially to means for registering the amount of writing performed by an operator.

Heretofore, to register work, it has been customary to mounta cyclometer on the typewriter, so that its drive shaft or spindle was coupled directly to the axle of the escapement wheel. Figures were thus obtained from the register or cyclometer proportional to the amount of work done, from which the actual work could be calculated. This manner of driving the cyclometer caused excessive pull on the escapement wheel axle, producing a heavy load on a type bar mechanism, which resulted in giving the keys a hard touch. The necessity for calculating also was objectionable. ilioreover, it was not possible to attach the registers hitherto in use to tabulating machines, for the tabulating attachment usually is placed placed immediately behind the escapemcnt wheel, where such registers had to be located.

One object of my invention is to provide registering means whereby the load on the type bar mechanism is greatly reduced, andthus prevent a hard touch.

Another object is to provide registering mechanism that can be attached to tabulating machines.

A still further object is to provide means for attaching the registering mechanism without making any alteration either in the typewriter or the mechanism, so that it can be easily attached or detached.

In carrying out my invention, abracket or panel carrying the registering mechanism is strapped to the machine frame by means of a bar which can be screwed down, A. gear having just as many teeth as the es capement wheel is mounted on said bracket, and a dog or pin on said'gear is moved by thcescapemcnt wheel as it rotates. [in other gear wheel which will usually be larger, having as many teeth as there are spaces on the platen scale, or letter spaces in a line, 1s mounted on this panel, and

driven by the first gear, so that a complete.

line of writing will turn the axle of this second gear once. The exact number of lines written then can be read 01f immediately, while the use of gearing such as I have described, greatly lessens the pull of the escapement axle. In case an ordinary cyclometer is used, where one turn of the shaft registers ten points, the units figure full lines written will be represented bythe other figures on the dials.

Other features and advantages will hereinaiter appear.

e5 may be neglected, andthe actual number of In the accompanying drawings, Figure 1 represents so much of a section through an Underwood typewriter with my improvement attached, as is necessary to show its details. Fig. 2 is a view on an'enlarged scale, of the escapement wheel and gearing driven thereby.

Keys 1 are struck to depress levers acting through hell cranks 3 to raise type bars 4 to strike type 5 against a platen 6. A universal bar 7 is actuated by heels 8 on type bars 4 whenever a. key is struck, to move an csca-pement frame 9 pivoted at 10, and so move dogs 11 to control escapementwheel 12 and thus control the carriage of the typewriter in letter feeding movement. On the axle 13 of said escapement wheel, is usual lock nut 14.

The machine so far described may be of' any ordinary construct-ion, and has been described in detail only-to show how myimprovement is applied to a given machine.

Attached to the frame of the machine by screws 15 and bar 16, is a panel 17 carrying the cyclometer or register and associated gearing. This last comprises a gear wheel 18 having the same number of teeth as' the pin or dog 19, which latter bears against and is rotated by the lock nut 14: of the cs escapement wheel 12, on which is mounted a capement wheel in the letter-feeding motion of the typewriter carriage Meshing with the gear wheel 18 is a second gear 20, having the same number of teeth as there are letter spaces in a full line, and by the axle 21 of this wheel is driven a counting mechanism 22. This first gear is preferahlymounted on a second panel,

ed to (lliYO the cyclometer, owing to the larg' reduction gearing employed. it. is

also evident that the writing or one full line will rotate the axle of the larger gear wheel a on e, thus making the 'unitsdial turn one tall 1' evelouieters. The figures in the higl'icr then will 1'G }')ltf5011i the aggregate number of full lines in the'matter written, for the letter spaces in the incomplete lines are added in automatically as -irzurtious ot full lines during the progress of the writing. The gear wheels bring all projecting parts of the counting nieel' anism to one side of the tabulating mechanism as it is ordinarily placed, so as to be completely out of its way. It will also be observed that no alterations need be made in the escapement. wheel or in the frame of the machine to attach my registry mechanism and that only ordinary tools are needed, So my improvement can be attached by almost any one to ordinary typewriter in a few moments.

I Variations may be resorted to within the scope oi": the invention, and portions of the laprovenients may be used without others.

Tl e nun'ierical relation between the number of teeth on the large wheel and the number of spaces on the scale, instead of being one of equality, as expressed above, merely, may be any suitable one of divisors or multiples.

Having thus described my invention, l. claim:

1. The combination with a typewriter, oil

an escapement wheel, a gear wheel having;

the same number of teeth as the escapement wheel, in free engagement therewith, a see therewith, the gear wheel of the register evolution in the usual types oi,

having she same munher or teeth as there .apement whe l, a gear A relation to said escapemeehanism, of .vi'ieel in mechaniea.

ment wheel and to a counting rt at wicel haying teeth mechanism, 521

' "nun"; r

on we ,1- 'egistermg niechanisl'ncomprising a gear wheel turning il cmirtlug;- wheels of the mechanism,the teeth in said gear wheel being in suitable :uunerieal relation. to the spaces in a. line, a nd gear meshing with the first, a, pin on said second wheel to be driven by a rotatin .uieinber, a body carrying said gears and. wheels, and means for attachii'ig said mechanism to a typewriter.

5, The combination with a typewriter, of an escapen'ient wheel, a b the same munber of teeth as the escapement, panel carrying said wheel, a gear wheel. meshing with said first gear having the same number of teeth as there are letter spaces in a full line of writing, a countingmechanism, a panel carrying first panel, said second gear and said counting mechanism, a bar, screws drawing said bar to cooperate with said second panel to grip the frame of the typewriter, and a pin on said first gear to tum it with the escapeinent.

6. The combination with a typewriter, of an escapement wheel, an abutment on the axle of said wheel, a gear wheel having the same number of teeth as the escapement, a panel carrying said wheel, a gear wheel meshii'ig with said first gear having the same number of teeth as there are letter spaces in a full line of writing, a counting mechanism,.a panel carrying said first panel, said second gear and said counting Hl6Cl]l-' nism, a bar, screws drawing said bar to coo 'ierate with said second panel to grip the frame of the Qypewriter, and a pin on said first gear to turn it with said abutment.

JGHh li ioLAUGHLlN.

Witnesses Earner, Grammars ti. rouse.

ear wheel having 

